膏体充填是目前井下充填的一种新工艺，充填料由尾砂、炉渣和水泥三种成分按一定比例加水混合而成。其工艺流程简述为选矿过程排出的尾砂，经高效浓密机浓缩后（入口浓度10％～15％，出口浓度45％～50％），用泵送到尾砂包进行沉淀，使其浓度达到50％～80％，经搅拌后送到压滤 Paste filling is currently a new filling process downhole, filling material from the tailings, slag and cement by a certain percentage of three components of water mixed together. The process flow is summarized as tailings discharged from the beneficiation process, concentrated by an efficient thickener (inlet concentration of 10% to 15%, outlet concentration of 45% to 50%), pumped to the tail sand bag for precipitation to its concentration Reached 50% ~ 80%, sent to the filter press after mixing